Process for manufacture of a component made of opaque synthetic quartz glass, and quartz glass tube manufactured according to the method
    42.
    发明申请
    Process for manufacture of a component made of opaque synthetic quartz glass, and quartz glass tube manufactured according to the method 有权
    由不透明的合成石英玻璃制成的部件的制造方法以及根据该方法制造的石英玻璃管

    公开(公告)号:US20020134108A1

    公开(公告)日:2002-09-26

    申请号:US09839795

    申请日:2001-04-20

    Abstract: A process for manufacture of a component made of opaque synthetic quartz glass, and a quartz glass tube manufactured according to said process. The process comprises (i) providing a starting material in the form of granulated material of highly pure, synthetic SiO2 comprising at least partially porous agglomerates of SiO2 primary particles, the granulated material having a compacted bulk density of no less than 0.8 g/cm3, (ii) filling the granulated material into a mold and converting it to an opaque quartz glass preform through a process of melting, and (iii) reshaping the preform in a heat reshaping process to obtain a component made of opaque quartz glass. A quartz glass tube is made of quartz glass consisting of a granulated material of synthetic SiO2 with a lithium content of no more than 100 wt-ppb, and the wall thickness of said component being in the range of 0.5 mm to 15 mm.

    Abstract translation: 一种制造由不透明的合成石英玻璃制成的部件的方法,以及根据所述方法制造的石英玻璃管。 该方法包括(i)提供高纯度合成SiO 2的造粒材料形式的起始材料,其包含SiO 2一次颗粒的至少部分多孔附聚物,所述造粒材料的压实堆积密度不小于0.8g / cm 3, (ii)将造粒材料填充到模具中并通过熔化过程将其转化为不透明的石英玻璃预制件,以及(iii)在热成型工艺中重新成形预成型件以获得由不透明石英玻璃制成的部件。 石英玻璃管由石英玻璃制成,石英玻璃由合成SiO 2的粒状材料组成,锂含量不超过100wt-ppb,所述组分的壁厚在0.5mm至15mm的范围内。

    Opaque quartz glass product and method of manufacture
    43.
    发明授权
    Opaque quartz glass product and method of manufacture 有权
    不透明石英玻璃制品及其制造方法

    公开(公告)号:US5985779A

    公开(公告)日:1999-11-16

    申请号:US125240

    申请日:1998-08-13

    Abstract: Disclosed is a quartz glass product of enhanced opacity manufactured by fusion of silica particles, the opacity being enhanced by the reaction of an organosilicon additive in the course of the fusion process. A method of enhancing the opacity of a quart glass product by fusing silica particles in the presence of an organosilicon additive is also disclosed.

    Abstract translation: PCT No.PCT / GB97 / 00398 Sec。 371日期1998年8月13日 102(e)日期1998年8月13日PCT 1997年2月13日提交PCT公布。 WO97 / 30000 PCT出版物 日期1997年8月21日公开是通过二氧化硅颗粒的熔融制造的增强不透明度的石英玻璃产品,通过有机硅添加剂在熔融过程中的反应来增强不透明度。 还公开了通过在有机硅添加剂的存在下熔融二氧化硅颗粒来提高夸脱玻璃制品的不透明度的方法。

    High purity opaque silica glass
    44.
    发明授权
    High purity opaque silica glass 失效
    高纯度不透明石英玻璃

    公开(公告)号:US5977000A

    公开(公告)日:1999-11-02

    申请号:US977887

    申请日:1997-11-25

    Abstract: Opaque silica glass having a density of 2.0 to 2.18 g/cm.sup.3, sodium and potassium elements concentrations in the silica glass of each 0.5 ppm or less and an OH group concentration of 30 ppm or less, and containing bubbles which are independent bubbles having the following physical values: a bubble diameter of 300 .mu.m or less, and a bubble density of 100,000 to 1,000,000 bubbles/cm.sup.3, and a production process for opaque silica glass, including: filling quartz raw material grain having a particle size of 10 to 350 .mu.m in a heat resistant mold, heating it in a non-oxidizing atmosphere from a room temperature up to a temperature lower by 50 to 150.degree. C. than a temperature at which the above raw material grain is melted at a temperature-raising speed not exceeding 50.degree. C./minute, then, slowly heating it up to a temperature higher by 10 to 80.degree. C. than the temperature at which the quartz raw material grain is melted at the speed of 10.degree. C./minute or less, and cooling after maintaining at the above temperature.

    Abstract translation: 密度为2.0〜2.18g / cm 3的不透明二氧化硅玻璃,二氧化硅玻璃中的钠和钾元素浓度为0.5ppm以下,OH基浓度为30ppm以下,并且含有具有以下的独立气泡的气泡 物理值:气泡直径为300μm以下,气泡密度为100,000〜1,000,000个气泡/ cm 3,以及不透明石英玻璃的制造方法,其特征在于,填充粒径为10〜350μm的石英原料粒子 在耐热模具中,将其在非氧化性气氛中从室温加热到低于50-150℃的温度,而不是以不升温速度将上述原料颗粒熔化的温度 超过50℃/分钟,然后缓慢加热至高于10℃至80℃的温度,高于石英原料颗粒以10℃/分钟或更低的速度熔化的温度, 并保持冷却 在上述温度下。

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